E-mail: michael@shboqu.com   |   Expert in Water Quality Measurement and Water Treatment Project

Miniaturization and energy saving of COD water quality analyzer

by:BOQU     2021-07-07

The advantages and characteristics of COD analyzer:

(1) The operation of the optical system and the peristaltic pump adopts vague algorithms, which not only greatly prolongs the life of the optoelectronic device but also reduces the impact of the failure of the optoelectronic device on the accuracy of data measurement;u200b

(2) Unique planning makes this product have a lower failure rate than similar products;

(3) The accurate metering of reagents is completed through the visual photoelectric system, which overcomes the quantitative error caused by the wear and tear of the peristaltic pump tube; at the same time, the accurate quantification of trace reagents is completed, each metering is the only 1.0ml, which greatly reduces the use of reagents the amount;

(4) The light source adopts constant temperature control to avoid the influence of the drift of the light source signal on the measurement results. Greatly improve the stability and accuracy of measurement;

(5) Peristaltic pump negative pressure suction, there is always an air buffer between the reagent and the pump tube, which avoids the corrosion of the pump tube;

(6) The high-temperature and high-pressure digestion system speeds up the response process and overcomes the corrosion of the equipment caused by the corrosive gas evaporation of the open system;

The COD analyzer is powered by a -220V power supply, which is suitable for the determination of large batches of water samples in the laboratory. Reliable operation, fast calculation speed, temperature compensation function; high precision, and good repeatability. The panel printer can actively print out the measurement results. The standard communication interface can transmit all the data of the measurement process to the general accounting machine through a dedicated serial cable to complete the computerized management of the measurement results.

COD analyzer uses an embedded microprocessor as the control unit, which has high-temperature control accuracy. The reading is convenient and intuitive, and four buttons are used to control the outside of the instrument, which is easy to operate. The instrument can store 10 heating programs, during which two commonly used heating programs are cured, and other programs can be adjusted by users according to their needs. It can heat up to 25 digestion tubes at a time. It can not only cooperate with the CM-02 desktop COD analyzer but also can be used alone for other chemical analyses that require a heating process.

The COD analyzer uses the rapid airtight catalytic digestion method (including photometric method), uses potassium dichromate as the oxidant, and uses a 610-nanometer monochromatic light source to determine the concentration of hexavalent chromium reduced to trivalent chromium to complete the COD measurement. Use imported special quartz cuvettes instead of cuvettes or cuvettes, heat the reaction in the same container and then perform color comparison operations. Reduce the number of reagents and reduce the failure rate of the instrument.

COD analyzer is a new water quality monitoring instrument with miniaturization and energy saving. The instrument has been miniaturized and is easy to carry. The heating equipment of the selected skills has completed the low-power heating, and the power consumption of the heater does not exceed 90W. The instrument uses digital processing skills to directly display the measurement results and is convenient and intuitive to use.

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